Thanks Bear, .
Finally All I want to know is, if I send a array or a arraylist to my xyz.jsp (containing all cell values of my excel sheet). How do I segregate this one single object into my original single cell values and display it?

Alright, I'm new to this concept. There is one more doubt I have that is, do sendRedirect() method just sends you to the next page or It can send data from abc.java to xyz.jsp?
How do I send data from abc.java to xyz.jsp? Also I don't just wanna display it, but display it in tabular format. So, where do I do all the formatting of the data? On abc.java or xyz.jsp?

I have a servlet, data from this abc.java servlet is extracted from abc.jsp. This data is worked upon and sent to xyz.jsp to display it to the client. From xyz.jsp the data is sent to a servlet to insert it into a database to store.

What should I use in abc.java? RequestDispatcher or ReDirect?? If it requestDispatcher then forward or include??

Here my string file appears to be empty. Can someone please tell me where am I going wrong?
Because while debugging I can see the file being uploaded to the servlet but I'm unable to retrieve contents of the file. Please help.